I’m sorry, I could’ve been more clear. There is an app called InnerTune (F-Droid is an app store on Android that contains only free/open source software) which lets you stream and download all of yt music for free. You can also use the website beatbump.io to stream.
Youtube Premium is also unnecessary when you use the adblocker Ublock Origin on Firefox. On Android, NewPipe is also a great app to watch and download the videos ad-free.
That is possible because Google badly protects its content APIs.
Check out InnerTune on Android or https://beatbump.io , you can listen to yt music gratis thanks to free/libre software!
Really bad advice. Trading Meta app for Meta app. It is proprietary so you can be sure WhatsApp does not have encryption like Signal